Using stainless steel, it is Long Lasting and Durable. Unlike plastic and fragile clips, they are strong and durable enough to last you a lifetime!The strong and agile spring can clamp your open snack bag tightly. Protect your food from the air and help it stay fresh longer. Great for sealing chip bags, cereal bags, cracker bags etc.You can use our clips to seal open food bags or sachets to prevent food from coming in contact with air that can cause food spoilage. It is also suitable for storing all kinds of documents in the office, etc.